BARRILLA MOUNTAINS. The Barrilla Mountains are twenty miles northeast of Fort Davis in northeastern Jeff Davis County (their center is at 30°48' N, 103°40' W). They stretch fourteen miles from northwest to southeast, roughly paralleling the county line but crossing into Reeves and Pecos counties. The highest elevation in the Barrillas is 5,180 feet above sea level, 1,400 feet above the intersection of Ranch Road 1832 and State Highway 17, three miles east. The surrounding shallow, stony soils support Mexican buckeye, walnut, persimmon, desert willow, scrub brush, and sparse grasses. The Spanish word barrilla can refer either to a form of impure soda or to the salt-wort plant, but one source claims that in this case it is actually a version of Varela, the name of an early settler.